CN105846258A - Coaxial connector and plug and socket thereof - Google Patents
Coaxial connector and plug and socket thereof Download PDFInfo
- Publication number
- CN105846258A CN105846258A CN201610376490.4A CN201610376490A CN105846258A CN 105846258 A CN105846258 A CN 105846258A CN 201610376490 A CN201610376490 A CN 201610376490A CN 105846258 A CN105846258 A CN 105846258A
- Authority
- CN
- China
- Prior art keywords
- plug
- outer conductor
- socket
- coaxial connector
- coupling nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention relates to the field of electrical connectors, in particular to a coaxial connector and a plug and a socket thereof. The coaxial connector comprises the plug and the socket, wherein the plug comprises an outer plug conductor and a connection nut; the connection nut is rotationally assembled on the outer plug conductor; the socket comprises an outer socket conductor; the outer plug conductor is provided with an insertion part which is used for inserting of the outer socket conductor; a set distance is formed between the outer wall surface of the insertion part and the inner wall surface of the connection nut; a thickening part is arranged on an outer layer of the insertion part; expansion parts matched with the thickening part are arranged in holes of the outer socket conductor and the connection nut; the set distance is the distance between the outer side surface of the thickening part and the inner wall surface of the expansion part in the hole of the connection nut; and an outer thread matched with the connection nut is formed in the outer socket conductor. By the coaxial connector, the strength, the reliability and the characteristic impedance can be improved under the condition of not increasing the boundary dimension of the SMA radio-frequency coaxial connector and reserving the mechanical property and the environmental resistance of the SMA connector.
Description
Technical field
The present invention relates to electric connector field, especially relate to a kind of coaxial connector and plug, socket.
Background technology
SMA train of radio frequency coaxial connector is a kind of widely used small-sized threaded coaxial connector, be applicable to the loop of rf of electronics, microwave equipment and digital communication system etc., connect radio-frequency cable or microstrip line or other microstrip circuit, there is bandwidth, performance is excellent, physical dimension is little, be suitable for and the feature such as microstrip circuit matches.
The main composition part of the plug of existing SMA train of radio frequency coaxial connector assemblies includes center conductor, dielectric, outer conductor and the coupling nut etc. that from-inner-to-outer is sequentially coaxially arranged, wherein center conductor, insulator and outer conductor form microwave transmission path, to realize the transmission to signal.In prior art, owing to the appearance and size of SMA connector has strict restriction, on the one hand this make the appearance and size of coupling nut be defined as standard value, on the other hand the wall thickness making the outer conductor of socket is also defined as standard value, the most just the inwall of coupling nut and the spacing between the part that socket plugs together of plug outer conductor are limited, make plug outer conductor for limited with the wall thickness of the part of socket grafting, do not only exist intensity low, the problem of poor reliability, and have impact on the characteristic impedance of connector, for these reasons, also do not have operating frequency can reach 6GHz both at home and abroad at present, characteristic impedance can reach the screw connected radio frequency (RF) coaxial connector product meeting International or National standard of 75 Ω.
Additionally, in current SMA train of radio frequency coaxial connector assemblies, in the inner and outer conductor of plug and the internal and external conductor of socket, there is inner wire in the case of outer conductor aligns the most completely and have begun to the situation of contact, this will make to there may be position deviation radially or deflection between inner wire, inserts by force, can cause the damage of inner wire.
Summary of the invention
It is an object of the invention to provide a kind of coaxial connector, to improve its intensity, reliability and characteristic impedance under conditions of not increasing the appearance and size of SMA radio frequency (RF) coaxial connector, the machinery retaining SMA connector and environmental resistance.
Meanwhile, the present invention also aims to provide the plug and socket of above-mentioned coaxial connector.
For achieving the above object, the radio frequency (RF) coaxial connector of the present invention is by the following technical solutions: coaxial connector, including plug and socket, plug includes plug outer conductor and rotates the coupling nut being assemblied on plug outer conductor, socket includes socket outer conductor, plug outer conductor has for the Plug Division with socket outer conductor grafting, setpoint distance is had between outside wall surface and the internal face of coupling nut of Plug Division, the outer layer of Plug Division has reinforcement, the Kong Jun of socket outer conductor and coupling nut has the enlarged mated with reinforcement, described setpoint distance is the distance between the internal face of the enlarged in the hole of the lateral surface of reinforcement and coupling nut, socket outer conductor is provided with the external screw thread mated with coupling nut.
Forming step surface between Plug Division and other parts of described plug outer conductor, described step surface is provided with seal gasket.
The big footpath of the internal thread of described coupling nut is 7 millimeters.
Described setpoint distance is the distance between the outer conductor Plug Division of standard SMA-coaxial connector and coupling nut internal face.
Described socket outer conductor is provided with and guides, with described Plug Division, the jack that grafting coordinates, distance between end and the socket inner wire end of jack meets: during grafting, and socket inner wire contacts after plug outer conductor forms guiding cooperation with socket outer conductor with plug inner conductor.
The plug of coaxial connector is by the following technical solutions: the plug of coaxial connector, the coupling nut being assemblied on outer conductor including outer conductor and rotation, outer conductor has for the Plug Division with adaptive socket outer conductor grafting, setpoint distance is had between outside wall surface and the internal face of coupling nut of Plug Division, the outer layer of Plug Division has reinforcement, the enlarged of the Kong Youyu reinforcement coupling of coupling nut, described setpoint distance is the distance between the internal face of the enlarged in the hole of the lateral surface of reinforcement and coupling nut.
Forming step surface between Plug Division and other parts of described outer conductor, described step surface is provided with seal gasket.
The big footpath of the internal thread of described coupling nut is 7 millimeters.
Described setpoint distance is the distance between the outer conductor Plug Division of standard SMA-coaxial connector and coupling nut internal face.
The socket of coaxial connector is by the following technical solutions: the socket of coaxial connector, including socket outer conductor, the enlarged that the reinforcement of the plug outer conductor that the hole of described socket outer conductor has the coaxial connector plug with the present invention mates.
The invention has the beneficial effects as follows: in the radio frequency (RF) coaxial connector that the present invention provides, the outer layer of the Plug Division of plug outer conductor has reinforcement, the enlarged of the Kong Youyu reinforcement coupling of coupling nut, setpoint distance is that the distance between the internal face of the enlarged portion in the hole of the lateral surface by reinforcement and coupling nut is constituted, this is actually in the case of the appearance and size not changing SMA coaxial connector, the thickness of coupling nut redundancy originally has been transferred on the outer conductor Plug Division of intensity and characteristic impedance more weakness, the most just can be in the appearance and size not increasing SMA radio frequency (RF) coaxial connector, its intensity is improved under conditions of the machinery of reservation SMA connector and environmental resistance, reliability and characteristic impedance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the plug of a kind of embodiment of coaxial connector；
Fig. 2 is the profile (locally) of the plug in Fig. 1；
Fig. 3 is the structural representation of the socket of a kind of embodiment of coaxial connector；
Fig. 4 is the profile (locally) of the socket in Fig. 3；
Fig. 5 be plug and the socket of coaxial connector plug together schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
SMA train of radio frequency coaxial connector is a kind of small-sized threaded coaxial connector.But, along with being on the increase of application scenario, current standard SMA series connector has begun to occur meeting use the problem required.Such as, owing to being retrained by relevant criterion, widely apply and be desirable that SMA radio frequency (RF) coaxial connector has the appearance and size of standard under scene, but also require that it has the intensity and characteristic impedance more strengthened.And present case is, owing to by standard-sized requirement, the Plug Division of the outer conductor of SMA radio frequency (RF) coaxial connector is increasingly becoming weak link, in use become constraint connector intensity and the principal element of characteristic impedance.Inventor finds after research, and in the SMA connector of standard, the gauge of coupling nut is by certain amount of redundancy, based on this, inventors herein proposes technical scheme.
The specific embodiment of the coaxial connector of the present invention, as shown in Figures 1 to 5, this radio frequency (RF) coaxial connector includes plug 101 and socket 102.
The structure of plug 101 is shown in Fig. 1, Fig. 2 and Fig. 5.Plug 101 includes plug inner conductor 11, plug insulator 12, plug outer conductor 13 and coupling nut 14, and in above-mentioned each parts, plug inner conductor 11, plug insulator 12, plug outer conductor 13 and coupling nut 14 from-inner-to-outer are sequentially coaxially arranged.In the present embodiment, plug inner conductor 11 uses contact pin inner wire, and it is securely fitted in plug outer conductor 13 by plug insulator 12, thus together form microwave transmission path with plug insulator 12 and plug outer conductor 13.
One end of plug outer conductor 13 is provided with Plug Division 131, Plug Division 131 is used for and socket 102 grafting, be can be seen that by Fig. 2 and Fig. 5, Plug Division 131 is cylindrical in shape, here for the intensity and the characteristic impedance that optimize outer conductor 13, outer layer in Plug Division 131 is provided with thickening layer, is the structure of integral type between thickening layer and the other parts of Plug Division.Claiming thickening layer, mainly compared with the Plug Division of the outer conductor of the same model SMA coaxial connector of existing standard, the wall thickness of Plug Division 131 is strengthened at outer layer herein.It is as shown in Figure 2 equally, step surface is formed between Plug Division and other parts of outer conductor 1, this step surface is provided with seal gasket 15, during use, seal gasket 15 can coordinate with socket, plays the effect of sealing, and certain seal gasket 15 can also use conduction rubber cushion, in such cases, seal gasket 15 may also operate as the effect reliably electrically connecting outer conductor 13 with socket.
Coupling nut 14 rotates assembling, i.e. can rotate is assemblied on plug outer conductor 13, in the present embodiment, it is fitted by what snap ring 16 realized between coupling nut 14 and plug outer conductor 13, claim snap ring 16 herein, it is actually a kind of jump ring or claims circlip, it is respectively equipped with draw-in groove on the inwall of coupling nut 14 and on the outer wall of plug outer conductor, snap ring 16 is stuck in and in the draw-in groove of correspondence, coupling nut 14 can be rotated relative to plug outer conductor, it is impossible to move axially relative to plug outer conductor 13.As seen from Figure 2, the endoporus of coupling nut 14 is divided into two sections, the thread segment of these the two sections peripheries, Plug Division 131 being respectively positioned at plug outer conductor 13 and the load segment coordinated with plug outer conductor, the aperture of thread segment is greater than load segment herein, is wherein enlarged more than the part of load segment.Claiming enlarged, mainly compared with the coupling nut of the same model SMA coaxial connector of existing standard, the aperture of thread segment is expanded herein.The expansion size of this enlarged matches each other with the thickening size of the thickening layer of the grafting part of plug outer conductor, so that keep setpoint distance between the outside wall surface of Plug Division and the internal face of coupling nut, this setpoint distance is the distance between outer conductor Plug Division and the coupling nut internal face of the standard SMA radio frequency (RF) coaxial connector of same model.After design enlarged, the big footpath of the internal thread of coupling nut 14 reaches 7 millimeters, and the intensity of coupling nut 14 is still fully able to meet needs.
The structure of socket is found in Fig. 3, Fig. 4 and Fig. 5, be can be seen that by Fig. 4 and Fig. 5, socket includes socket outer conductor 21, socket inner wire 22 and socket insulator 23, socket outer conductor 21 is provided with the Plug Division with plug outer conductor and guides the jack that grafting coordinates, in order to mate, the jack of socket has been also carried out corresponding expansion, is i.e. provided with enlarged.Distance between end and the socket inner wire end of jack meets: during grafting, socket inner wire 22 contacts after plug outer conductor forms guiding cooperation with socket outer conductor with plug inner conductor, the most just plug inner conductor can be made to form guiding between plug outer conductor with socket outer conductor with socket inner wire, positioning relation contacts later again, thus can prevent the two impaired problem from occurring.
In the other embodiments of the coaxial connector of the present invention, also the other parts of plug outer conductor can be also provided with thickening layer, thus its performance such as intensity and characteristic impedance can be optimized further, certainly, in such cases, step surface between grafting part and other parts will not exist, and seal gasket has not existed yet, and seal and can meet to use the form of side face sealing ring；Described setpoint distance is in addition to the size of the standard SMA-coaxial connector mentioned in for above-described embodiment, it is also possible to the most additionally arrange, as this setpoint distance all may be used between 6.5-7.5.
The embodiment of the plug of coaxial connector, the structure of this plug is identical with the structure of the plug in above-mentioned coaxial connector, and it will not go into details herein.It addition, also identical with the plug in above-mentioned coaxial connector in place of its deformable, the most also it will not go into details.
The embodiment of the socket of coaxial connector, the structure of this socket is identical with the structure of the socket in above-mentioned coaxial connector, and it will not go into details herein.It addition, also identical with the socket in above-mentioned coaxial connector in place of its deformable, the most also it will not go into details.
Claims (10)
1. coaxial connector, including plug and socket, plug includes plug outer conductor and rotates the coupling nut being assemblied on plug outer conductor, socket includes socket outer conductor, plug outer conductor has for the Plug Division with socket outer conductor grafting, setpoint distance is had between outside wall surface and the internal face of coupling nut of Plug Division, it is characterized in that, the outer layer of Plug Division has reinforcement, the Kong Jun of socket outer conductor and coupling nut has the enlarged mated with reinforcement, described setpoint distance is the distance between the internal face of the enlarged in the hole of the lateral surface of reinforcement and coupling nut, socket outer conductor is provided with the external screw thread mated with coupling nut.
Coaxial connector the most according to claim 1, it is characterised in that forming step surface between Plug Division and other parts of described plug outer conductor, described step surface is provided with seal gasket.
Coaxial connector the most according to claim 1, it is characterised in that the big footpath of the internal thread of described coupling nut is 7 millimeters.
4. according to the coaxial connector described in any one of claim 1-3, it is characterised in that the described spacing that sets is as the spacing between the outer conductor Plug Division and coupling nut internal face of standard SMA-coaxial connector.
5. according to the coaxial connector described in any one of claim 1-3, it is characterized in that, described socket outer conductor is provided with and guides, with described Plug Division, the jack that grafting coordinates, distance between end and the socket inner wire end of jack meets: during grafting, and socket inner wire contacts after plug outer conductor forms guiding cooperation with socket outer conductor with plug inner conductor.
6. the plug of coaxial connector, the coupling nut being assemblied on outer conductor including outer conductor and rotation, outer conductor has for the Plug Division with adaptive socket outer conductor grafting, setpoint distance is had between outside wall surface and the internal face of coupling nut of Plug Division, it is characterized in that, the outer layer of Plug Division has reinforcement, the enlarged of the Kong Youyu reinforcement of coupling nut coupling, and described setpoint distance is the distance between the internal face of the enlarged in the hole of the lateral surface of reinforcement and coupling nut.
The plug of coaxial connector the most according to claim 6, it is characterised in that forming step surface between Plug Division and other parts of described outer conductor, described step surface is provided with seal gasket.
The plug of coaxial connector the most according to claim 6, it is characterised in that the big footpath of the internal thread of described coupling nut is 7 millimeters.
The plug of coaxial connector the most according to claim 6, it is characterised in that the described spacing that sets is as the spacing between the outer conductor Plug Division and coupling nut internal face of standard SMA-coaxial connector.
10. the socket of coaxial connector, including socket outer conductor, it is characterised in that the hole of described socket outer conductor has the enlarged that the reinforcement with the plug outer conductor of the plug as described in any one of claim 6-9 mates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610376490.4A CN105846258B (en) | 2016-05-31 | 2016-05-31 | Coaxial connector and its plug, socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610376490.4A CN105846258B (en) | 2016-05-31 | 2016-05-31 | Coaxial connector and its plug, socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846258A true CN105846258A (en) | 2016-08-10 |
| CN105846258B CN105846258B (en) | 2018-01-16 |
Family
ID=56595937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610376490.4A Active CN105846258B (en) | 2016-05-31 | 2016-05-31 | Coaxial connector and its plug, socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846258B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146993A (en) * | 2017-06-28 | 2017-09-08 | 冯斌斌 | A kind of electric power break-make electric installation |
| CN107526139A (en) * | 2017-09-30 | 2017-12-29 | 武汉资联虹康科技股份有限公司 | The joints of optical fibre |
| CN108390183A (en) * | 2017-12-28 | 2018-08-10 | 湖南时变通讯科技有限公司 | A kind of sub-miniature A connector protective device |
| CN108736203A (en) * | 2018-07-28 | 2018-11-02 | 中国电子科技集团公司第四十研究所 | A kind of high-performance floating blind inserting radio frequency coaxial connector |
| CN111224299A (en) * | 2020-01-09 | 2020-06-02 | 北京格润海泰科技有限公司 | Radio frequency connector interface structure |
| CN111370898A (en) * | 2020-03-24 | 2020-07-03 | 中航光电科技股份有限公司 | Connector and plug |
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| US6210221B1 (en) * | 1999-10-13 | 2001-04-03 | Maury Microwave, Inc. | Microwave quick connect/disconnect coaxial connectors |
| CN101847808A (en) * | 2010-05-11 | 2010-09-29 | 上海图越电子有限公司 | Sma radio frequency coaxial connector |
| CN202633617U (en) * | 2012-07-10 | 2012-12-26 | 上海航天科工电器研究院有限公司 | Plug pin connector with boss structure |
| CN203983664U (en) * | 2014-06-17 | 2014-12-03 | 昆山安胜达微波科技有限公司 | SMA contact pin contacting piece RF connector |
| CN204615109U (en) * | 2015-05-13 | 2015-09-02 | 镇江华浩通信器材有限公司 | A kind of high-performance minor structure SMA connector |
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2016
- 2016-05-31 CN CN201610376490.4A patent/CN105846258B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6210221B1 (en) * | 1999-10-13 | 2001-04-03 | Maury Microwave, Inc. | Microwave quick connect/disconnect coaxial connectors |
| CN101847808A (en) * | 2010-05-11 | 2010-09-29 | 上海图越电子有限公司 | Sma radio frequency coaxial connector |
| CN202633617U (en) * | 2012-07-10 | 2012-12-26 | 上海航天科工电器研究院有限公司 | Plug pin connector with boss structure |
| CN203983664U (en) * | 2014-06-17 | 2014-12-03 | 昆山安胜达微波科技有限公司 | SMA contact pin contacting piece RF connector |
| CN204615109U (en) * | 2015-05-13 | 2015-09-02 | 镇江华浩通信器材有限公司 | A kind of high-performance minor structure SMA connector |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146993A (en) * | 2017-06-28 | 2017-09-08 | 冯斌斌 | A kind of electric power break-make electric installation |
| CN107146993B (en) * | 2017-06-28 | 2018-05-22 | 宁夏中科天际防雷股份有限公司 | A kind of electric power break-make electric installation |
| CN107526139A (en) * | 2017-09-30 | 2017-12-29 | 武汉资联虹康科技股份有限公司 | The joints of optical fibre |
| CN108390183A (en) * | 2017-12-28 | 2018-08-10 | 湖南时变通讯科技有限公司 | A kind of sub-miniature A connector protective device |
| CN108736203A (en) * | 2018-07-28 | 2018-11-02 | 中国电子科技集团公司第四十研究所 | A kind of high-performance floating blind inserting radio frequency coaxial connector |
| CN108736203B (en) * | 2018-07-28 | 2024-05-17 | 中国电子科技集团公司第四十研究所 | High-performance floating blind-plug type radio frequency coaxial connector |
| CN111224299A (en) * | 2020-01-09 | 2020-06-02 | 北京格润海泰科技有限公司 | Radio frequency connector interface structure |
| CN111370898A (en) * | 2020-03-24 | 2020-07-03 | 中航光电科技股份有限公司 | Connector and plug |
| CN111370898B (en) * | 2020-03-24 | 2021-09-03 | 中航光电科技股份有限公司 | Connector and plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846258B (en) | 2018-01-16 |
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